Let's go visit them.为什么不能是Let's go to visit them.或Let's go and visit them.请讲讲个中语法,

Let's go visit them.为什么不能是Let's go to visit them.或Let's go and visit them.请讲讲个中语法,
Let's go visit them.
为什么不能是Let's go to visit them.或Let's go and visit them.请讲讲个中语法,

Let's go visit them.为什么不能是Let's go to visit them.或Let's go and visit them.请讲讲个中语法,
你说的两种都可以呀
口语中不是很讲究语法的话第一个也行

应该是可以的,这两句都没有语法错误啊!

你是不是看错了?怎么会有2个动词连用的用法?

Let's go to visit them.就是Let's go and visit them.是口语中的用法,我和外国朋友接触比较多,他们天天都这样说.